Sack-cleaning machine.



PATENTED MAR. 20, 1906.

P. J. WOLFE. SACK CLEANING MACHINE.

APYLIDA'IION FILED JULY18,1905.

2 BHIIETS-SHBET l.

-Ilililllllilll No. 815,396. PATENTED MAR. 20, 1906. F. J. WOLFE.

SACK CLEANING MACHINE.

2 SHEETS-833i 2 UNITED STATES PAT-ENT-BFFIOE.

FREDRIUK JOHN WOLFE, OF KANSAS CITY, MISSOURL SACK-CLEANlNG MACHINE.

Specification of Letters Patent.

Patented. March 20, 1906.

Application filed July 18, 1905. Serial No, 270,239.

: quickly and efiioiontly cleaning the sacks-in which flour, cement, or other products have been stored.

.To this end the invention consists in certain novel and peculiar features of construe tion and organization, as hereinafter described and claimed, and in order that it may be fully understood reference is to be had to the accompanying drawings, in which Figure 1 is a perspective View of a sack- 20 cleaning machine embodying my invention.

0 upper ends of t 2 is a rear end View of the same. Fig. 3 is a central vertical longitudinal section on the line III III of Fig. 2. Fig 4: is a trans" verse section on the line IV IV ol Fig; 3.

In the said drawings, 1 indicates four legs arranged u right. in a rectangular relation and secure as at 2 or otherwise, to the support upon which they are erected.

gin icates longitudinal sills connecting the e uprights, and 4 end sills connecting sills 3, 5 indicating cross-bars connecting the legs 1 at a suitable distance above the floor.

6 indicates a pair of longitudinal bars connecting thp cross-bars 5, the cross-board 7 connectingthe rear legs,

8 indicates a casing disposed within and secured rigidly to the framework composed of arts 1 to 7, inclusive, the side walls 9 of sai cas' tapering downwardly to the inner edges of are 6, and 10 indicates a narrow hopper extending longitudinally of and de pen ing through the top of and into the easmg, the side walls of the hopper havin upwardly-pro'ectin pins 1 1 for a purpose ereinafter exp aine 12 indicates a pair of parallel longitudinally-extending shafts journaled in bearin s 13, secured on the sills 4 of the framewor 50 and secured rigidly on said shafts within the casing are a pair of rotary boaters 14, rovided at their edges with projeetim ru her or other flexible strips 15 m order that said flexible or yielding edges may come in contact with and beat the sacks without danger of tearing them, as mi 'ht occur if the boaters were not provided with said yielding edges.

16 indicates a pair of interrneshmg earwheels mounted on the rear ends of s afts 12 and almost wholly covered by ahousing 17, secured to the framework, as at 18.

19 indicates a belt-wheel secured on the front end of one of the shafts 12 and adapted to be driven by a suitable drive-belt, (not shown,) and 20 indicates asecond belt-wheel 65 on said shaft, connected by a belt 21 with the belt-wheel 22, secured rigidly on the front end of a longitudinal shaft 23, journaled in the front wall of the casing and in cross-hoard 7 at the rear end of the casing, said shaftextending rearwardly through the fan-casin 24, having a peripheral openi 25 communb eating with a chamber 26, which opens into the rear and lower end of the casing, the discharge-spout 27 of the fan-casing leading 7 5 through the floor or to any other suitable point for the purpose of drawing the dust to the dust-room, (not shown,) the fan 28, of which one blade only appears, (see Fig. 2,) being of any suitable or preferred type and secured on the shaft 23 within the fan-casing.

Arranged below the longitudinal bars 6 is a slide-drawer 29, having a handle 30 at its front end by which it may be drauul from under the casln This drawer has its upper side open, an at such point is of about the same width as the contracted bottom of the casin the waiis of the drawer flaring down wardliy, so that the drawer may be of comaratively large capacity. The drawer at its opposite edges rests upon the guideiaars 3 and is provided between said guide-bars with depending cleats 32, so as to uard against lateral movement and hold it alwe s in proper relation to the casing above.

11 the practical operation of the machine the socks are fed down through the hopper into the casing until they come within the plane of action of the heaters, which are revolving at a hi h rate of speed in the direc- 100 tion indicated by the arrows, Fig. 4. The heaters therefore alternately strike the sack and feed it down into the casing until its u per end is caused to engage P1115 11 of t e 1 opper, said pins serving to prevent the sack 1o;

from being fed entirely into the casing. This action of the heaters whips the sack around with reat ra idity in the casin and in an exceedingly s ort space of time eats out of it the flour, cement, or other product which i m it may have originally been charged with. After the sack has been subjeeted to the action of the heaters for a fraction of a minute it is withdrawn and inverted and in such position is again fed down into the casing through the ho per, so that the originally upper end shall a so be beaten and the flour or other roduct removed therefrom.

Whlle the machine is in operation and the sacks are being beaten, the suetional action of the fan draws most of the flour or other roduct out through opening 26 and into the art-casing, the latter discharging it through spout 27, a portion of the dust, presumably tie heavier particles, falling into and accu mulating in the drawer. At suitable intervals the drawer is pulled out and the aeeumulated flour, cement, or other product is removed. the machine is again ready for operation.

It will be observed on reference to Fig. 4 that the beater when horizontal extends through and beyond the plane of the opening in the bottom of the hop er and that the body of the heater is solid and unyielding, although it has a flexible strip along its edge. As a result of this arrangement and eonstruction the sack is not merely brushed, but is given a firm square blow and is caused to The drawer is then replaced and Having thus-described the inventionjwhat I claim as new, and desire to secure by Letters Patent, is

1. A sack-cleaning machine comprising a casing, a hopper in the top of the casing to permit the entrance of a sack into the casing, on itudinal shafts within the casing on opposite sides of the vertical plane of the ho per, rigid beaterlattes secured longitu inally upon the sait shafts, flexible strips seeured upon the sides and rojeeting slightly beyond the longitudinal e ges of sand beaterplates to im inge against the suspended sack, and means fin rotating the said shafts.

2. A sack-cleaning machine comprising a casing having downwardly-conver mg sides and an opening in its rear end, a upper in the top of the casing provided with means for suspending a sack, a pair of longitudinal shafts journaled in the casing, intermeshing gears on the rear ends of said shafts, a driving-pulle Y on the front end of one of said shafts, rigid heater-plates secured longitul dinally on said shafts and arranged to project swing from side to side, so that one beater leaves it disposed in the path of the other heater and the entire suriaee of the ba is subjected to the beating dirt-loosening ae- 1 tion. The elastic. edge of the beater cushions the blow just enough to prevent injury t0 the material of the sack without deereasing the effective force of the impaet of the beater upon the sack.

through the vertical plane of the hopper, a third shaft mounted longitudinally in the hopper below the inter eared shafts and driven from one of said s afts, a fan on the rear end of said shaft, and a fan-easing inelosing the fan and extending over the opening in the rear end of the main casing.

In testimony whereof I affix my signaturein the presence of two witnesses.

FREDRICK JOHN WOLFF.

\Vitnesses:

H. (J. RODGERS, G. Y. THORPE. 

